WKz─4型挖掘机中减速机大齿轮断齿的修复

Repair to Broken Teeth of Reducer Large Gear Used in WK-4 Excavator

介绍了大齿轮断齿的补焊修复新工艺，该工艺简便易行，耗费低廉，效果良好。

Procedure for welding broken teeth of large gear is presented in this article ,The procedure developed is easy ,simple ,low cost and with better result .